Translator Disclaimer
7 November 2012 A novel biosensor based on a coupled surface plasmon nanostructure
Author Affiliations +
Proceedings Volume 8421, OFS2012 22nd International Conference on Optical Fiber Sensors; 84215R (2012) https://doi.org/10.1117/12.975005
Event: OFS2012 22nd International Conference on Optical Fiber Sensor, 2012, Beijing, China
Abstract
A novel plasmonic biosensor based on coupled metal-dielectric buffer grating is proposed and analyzed by the rigorous coupled wave analysis (RCWA) method. The metal-dielectric buffer grating structure offers surface plasmon resonance suitable for high sensitivity biosensing applications. The calculated FWHW (full width at half maximum) of the transmission peak is 5 nm and the optical transmission efficiency is significantly enhanced at the resonant wavelength of 800.8 nm by introducing the dielectric buffer grating. The highly concentrated field distribution is sensitive to surrounding refractive index changes of the metal surface providing a sensitivity of 560 nm/RIU (refractive index unit) for optical biosensing applications.
© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Youqiao Ma, Gerald Farrell, Yuliya Semenova, H. P. Chan, and Qiang Wu "A novel biosensor based on a coupled surface plasmon nanostructure", Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 84215R (7 November 2012); https://doi.org/10.1117/12.975005
PROCEEDINGS
4 PAGES


SHARE
Advertisement
Advertisement
Back to Top